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(N0 ModeL) 3 T. M. KENNA.

AUTOMATIC REVERSING MEGHANISM. No. 333,525. Patented-Jan. 5, 1886.

ATTORNEY NITED STATES PATENT OFFICE.

THOMAS M. KENNA, OF NEW HAVEN, CONNECTICUT, ASSIGNOR OF ONE- HALF TOFREDERICK B. FARNSWORTH, OF SAME PLACE.

AUTOMATIC REVERSING MECHANISM.

SPECIFICATION forming part of Letters Patent No. 333.525, dated January5. 1886.

Application filed November 17, 1885. Serial No. 183,136. (No model.)

To all whom it may concern.-

Be it known that I, THOMAS M. KENNA, a citizen of the United States,residing at New Haven, in the State of Connecticut, have invented a newand useful Improved Automatic Reversing Mechanism, of which thefollowing is a specification.

The object of my invention is to provide automatic reversing mechanismfor driving machines which revolve alternately in opposite directions.

The invention consists in a novel arrangement of bevel friction-wheels,and in the shipping mechanism for operating the same, as hereinaftermore fully described and claimed.

In the accompanying drawings, Figure 1 is an end view of awashing-machine fitted with my improved reversing mechanism. Fig. 2 is aplan View of the mechanism, and Fig. 3 shows a modification of theshipping-yoke.

Referring to the drawings, A designates a beveled friction-wheel orconical disk secured on a shaft, b, which is journaled in the caseO of awashing-machine and drives a rotating drum or barrel inside the case. Ashaft, 6, is placed centrally in front of the disk at right angles toits axis, and journaled in suitable bearings, z, which are bolted to thecase 0. The shaft carries a pair of friction-cones, d, which arearranged diametrically opposite to each other on the face of the disk inj uxtaposition to the beveled surface thereof. The cones accurately fitthe bevel of the disk, and their shaft is adapted to slide endwise inits bearings sufficiently to bring either of the friction-cones intoworking engagement with the disk A, as shown. A screw-thread or worm, f,is formed on the shaft 6 midway between the friction-cones d. Aworm-wheel, g, intermeshes with the screw f, andturns on a stud or pin,h, which is secured in a suitable frame, It, fastened to'the bearings i.The wormwheel carries a cam,m, on its face, and rotates once while theshaft makes several revolutions. A shipping yoke, Z, is mounted on theshaft e between the cones, and slotted to slide on the stud h,whichsupports the wormwheel 9. The stud projects through the slot andreceives a nut, n, which secures both the yoke and worm-wheel in place.Friction collars or washers r are arranged on the shaft against theinner end of each friction-cone d,

recess and adjusted by set-screws.

and the yoke extends between the washers, with its ends bearing againstthem. The cam m fits into a suitable guideway, r, recessed in the sideof the yoke Z, and imparts intermittent reciprocating motion to the yokeas the worm-wheel revolves. The yoke moves the friction-cones and shaft6 endwise, and brings each of the cones alternately into contact withthe friction-disk A.

Constructed as above described and shown, the operation of my improvedreversing mechanism is as follows: The shaft 6, with its friction-conesd, is revolved continuously in one direction by the motive power of themachinery. As the friction-cones d are on opposite sides of thebevel-disk A, and are alternately brought into contact with it, theytherefore drive the disk successively in opposite directions. Suitablemeans (not shown) may be provided to adjust the bevel-disk Alongitudinally and hold it in proper proximity to the friction-cones d.Instead of sliding the shaft endwise, the cones may be movedcorrespondingly thereon by suitable means; but there is no objection toa slight longitudinal motion of the entire shaft,worm, anddrivingpulleys t, and this construction is preferable, on account of itssimplicity and cheapness. When it is desired to operate a metal-planeror similar machine by this shipping mechanism, the worm and wheel may bedispensed with, and the yoke L may be actuated directly by theplaner-dogs or by corresponding reciprocatingmechanism.Thewearofthecammmay be taken up, if required, by means of suitable gibsor guides arranged at the sides of the If desired, springs (not shown)may be placed back of the gibs, which will then be self-adj usting. Thecones d may be made of any suitable material; but they are preferablymade of paper, leather, or rawhide, whereby their drivingpower isincreased, and when the bevel of the cones is such as to wedge hardagainst the friction-disk the efficiency of the mechanism is stillfurther increased.

I claim as new and desire to secure by Letters Patent- 1. An automaticreversing mechanism consisting of a beveled friction wheel or disk, apair of friction-cones mounted on a shaft at right angles with the axisof the disk and on opposite sides of its face, and a shippingdeworm-wheel engaging therewith and carrying vice actuated alternatelyin opposite direca cam, on, and the shipping-yoke Z, reciprotions by themovement of the revolving cated by the cam and adapted to slide the :5

mechanism, and adapted to reciprocate the shaftendwise in its bearingsand successively 5 cones lengthwise and bringthem successively. engagethe friction-cones with the disk, subin contact with the bevel surfaceof the disk, stantially in the manner and for the purpose substantiallyin the manner described. specified.

-2. In combination, the beveled wheel or T diskA, the pair offriction-conesd d, mounted THOMAS KEL IO on a shaft at right angles withthe axis of the \Vitnesses:

disk and on opposite sides of its face, a screw I GEORGE L. BARNES, 0rworm formed or arranged on the shaft, 21; DAVID K. ANDREWS.

